Submission #72201333

Source Code Expand

from sys import stdin,stdout
# from os import _exit
# from bisect import bisect_left,bisect
# from heapq import heapify,heappop,heappush
# from sys import setrecursionlimit
from collections import defaultdict,Counter,deque
# from itertools import permutations
# from math import gcd,ceil,sqrt,factorial
# setrecursionlimit(int(1e5))
input,print = stdin.readline,stdout.write

n = int(input())
a = list(map(int,input().split()))
l = defaultdict(int)
r = defaultdict(int)
for i in a:
    r[i]+=1
ans = 0
for i in range(n):
    x = a[i]
    r[x]-=1
    if x%5==0:
        t=x//5
        ans+=l[7*t]*l[3*t]
        ans+=r[7*t]*r[3*t]
    l[x]+=1
print(f"{ans}\n")

Submission Info

Submission Time
Task D - Kadomatsu Subsequence
User aviral
Language Python (PyPy 3.11-v7.3.20)
Score 425
Code Size 687 Byte
Status AC
Exec Time 252 ms
Memory 290712 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 425 / 425
Status
AC × 3
AC × 33
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
All sample_01.txt, sample_02.txt, sample_03.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt
Case Name Status Exec Time Memory
sample_01.txt AC 65 ms 93452 KiB
sample_02.txt AC 64 ms 93744 KiB
sample_03.txt AC 65 ms 93816 KiB
test_01.txt AC 67 ms 93656 KiB
test_02.txt AC 68 ms 93548 KiB
test_03.txt AC 67 ms 93764 KiB
test_04.txt AC 67 ms 93728 KiB
test_05.txt AC 129 ms 159676 KiB
test_06.txt AC 131 ms 156340 KiB
test_07.txt AC 127 ms 156344 KiB
test_08.txt AC 129 ms 159324 KiB
test_09.txt AC 131 ms 159488 KiB
test_10.txt AC 130 ms 159360 KiB
test_11.txt AC 129 ms 159072 KiB
test_12.txt AC 127 ms 159400 KiB
test_13.txt AC 124 ms 159116 KiB
test_14.txt AC 128 ms 159356 KiB
test_15.txt AC 124 ms 159392 KiB
test_16.txt AC 127 ms 159132 KiB
test_17.txt AC 125 ms 159256 KiB
test_18.txt AC 129 ms 159240 KiB
test_19.txt AC 127 ms 159244 KiB
test_20.txt AC 161 ms 163360 KiB
test_21.txt AC 139 ms 159612 KiB
test_22.txt AC 156 ms 163084 KiB
test_23.txt AC 242 ms 222572 KiB
test_24.txt AC 252 ms 222788 KiB
test_25.txt AC 204 ms 192104 KiB
test_26.txt AC 246 ms 290620 KiB
test_27.txt AC 246 ms 290552 KiB
test_28.txt AC 245 ms 290704 KiB
test_29.txt AC 245 ms 290712 KiB
test_30.txt AC 245 ms 290556 KiB